CleanPowerSF Sfpuc Commission
March 11, 2025

Title (28 pt Black Font, Arial)
Title Line 2
April 25, 2011 (date format)(18 pt black font, Arial)
John Doe, (position/title), Division/Bureau
(Enterprise)
1 Hetch Hetchy Capital Improvement Program
Quarterly Report Update
Q2 | FY 2024
–

2025
March 11, 2025
Katie Miller, Director
Water Capital Programs
Infrastructure Division
FY24-25 Approved Program (22 projects)
Water Infrastructure:
• San Joaquin Pipeline Valve and Safe Entry
• SJPL Valve Remote Control & Monitoring
Power Infrastructure:
• Moccasin Powerhouse and GSU Rehabilitation
• Moccasin Powerhouse Bypass Upgrades
• Moccasin Switchyard Rehabilitation
• Warnerville Substation, Transmissions Lines
Joint Water/Power Infrastructure:
• Dams: O’Shaughnessy, Cherry, Eleanor, Early Intake, Moccasin • Tunnels: Mountain Tunnel, Canyon Tunnel
• Moccasin Penstock Rehabilitation
• Moccasin Wastewater Treatment Plant, Buildings 2
Hetch Hetchy Capital Improvement Program
2 Planning (6),
$633M
Design (4),
$175M
Bid & Award (1), $84M
Construction (3),
$321MCloseout (1),
$37M
Completed
(0), $0
Multiple Phase
(4), $416M
Not Initiated (3),
$262M
$1,928M
(22 Projects)
* Excluded 3 Project
Development Accounts ($89M)
Project Count by Phase*
HCIP Program Status (as of December 2024)
23%
% Complete
$404M
$1,613M
Expenditures
Expended Remaining
HCIP Program Cost Summary
(from Q2 Report Table 3)
4 Program Name
Expenditures
to Date
($Million)
Expenditures
During Q1-Q2
($Million)
Current
Approved
Budget
($Million)
Current
Forecasted
Cost
($Million)
Cost
Variance
($Million)
Cost
Variance in
Q4
($Million)
Water
Infrastructure $54 $11 $209 $209 $0 $0
Power
Infrastructure $132 $26 $376 $391 +$15 +$3
Joint
Infrastructure $217 $28 $1,431 $1,454 +$23 $0
Overall HCIP $404 $65 $2,017 $2,054 +$37 +$3
O’Shaughnessy Dam Outlet Works
Phase 1
5 Progress and Status:

A) Bulkheads:
• Progressive Design-Build contract DB-135 in
construction. Extensive dive inspections,
underwater cleaning performed.
• Slots 1 & 2 bulkheads delivered, installed,
successfully tested.

B) Drainage: Notice-to-Proceed issued.

C) Instream Flow Release Valves:
• Axial control valves & piping installed and
commissioned.

D) Slide Gates & E) Drum Gates:
• Needs Assessment continued.

Approved Budget: $43.7M
Forecasted Completion: June 2026
Current Phase: Construction
Expended to Date: $25.8M
New Bulkheads for Face of O’Shaughnessy Dam

O’Shaughnessy Dam Outlet Works
Instream Flow Release Valves Replacement - 2024
New Axial Flow Control Valve
Installation in O’Shaughnessy
Dam Diversion Tunnel
6 O’Shaughnessy Dam Outlet Works
Instream Flow Release Valves Replacement - 2024
100-year-old Tuolumne
River Instream Flow
Release Valve
2024 Replaced
Instream Flow Release
Valve
Mountain Tunnel Improvements
8 Progress and Status:
• Fourth winter Hetch Hetchy system shutdown
initiated Dec 16, 2024 through Mar 8, 2025.
• Tunnel lining repair: 100% completed by March
2025.
• Tunnel contact grouting: 50% completed by
March 2025.
• Completed large cut walls for Adits 5/6 & 8/9.
• Negotiations continued for removal of South
Fork and other work scope from contract.
• Moccasin Water Filtration Plant contract
progressing.

Approved Budget: $268.7M
Approved Completion: June 2027
Current Phase: Construction
Expended to Date: $154.8M
Mountain Tunnel – Lining Repair and Contact Grouting

72-inch Knife Gate Valve installed in Priest
Flow Control Facility
9 Mountain Tunnel Improvements
Winter Shutdown Construction December 2024-March 2025

• Planning phase continued.
• Alternatives being evaluated include new shaft with
tunnel; buried pipelines; and above-ground pipelines.
• New alignments within City-owned property are being
evaluated.
• Contracting Strategy being considered.
10 Approved Budget: $331.2M
Approved Completion: Dec 2034
Current Phase: Planning
Expended to Date: $8.6M
Moccasin Penstocks Rehabilitation
San Joaquin Pipelines (SJPL) Valve and
Safe Entry Improvement
11 Progress and Status:

Phase 1A & 1B Contracts (Tesla and Oakdale Entry
Improvements):
• All valves successfully factory tested; installation in Jan/Feb 2025.

Phase 2 (Pelican, Roselle, Emery):
• 2A: Contractor began work on crossover valves.
• 2B: Contract advertised in November.

Phase 3 (Tesla Surge Tower):
• Surge tower spillway completed.
• New 60-inch diameter piping for surge tower
installed.

Approved Budget: $157.8M
Approved Completion: February 2029
Current Phase: Construction
Expended to Date: $48.7M
Tesla Surge Tower Spillway Construction

San Joaquin Pipelines (SJPL) Valve and Safe
Entry Improvement
Winter Shutdown Construction December 2024-March 2025
Installing 36-inch Diameter Knife Gate Crossover Valves 12 San Joaquin Pipelines (SJPL) Valve and Safe
Entry Improvement
Winter Shutdown Construction December 2024-March 2025
Installing 60-inch Steel Pipe
within 132-inch Shroud
Forms for concrete Surge
Tower base
New 60-inch pipeline for
Surge Tower
New Tesla Surge Tower (upstream UV Facility)

QUESTIONS?

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QUARTERLY REPORT
Hetch Hetchy Capital Improvement Program
October 2024 – December 2024
Published: February 21, 2025
DRAFT

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i
HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

EXECUTIVE SUMMARY
This quarterly report provides a summary update on the Hetch Hetchy Capital Improvement Program (HCIP) that is part of the larger Hetch Hetchy Water Capital Improvement Program. The primary intent of the report is to provide the Commission, stakeholders, and the public with a status summary of the HCIP based on data for the period of October 1, 2024 to December 31, 2024.

This quarterly report includes all approved HCIP projects in the Hetch Hetchy Water Capital Improvement Program according to the 10-Year C apital Plan for FY2024-25 to FY2033-34, presented to and adopted by the Commission on February 13, 2024 (2024 HCIP). There are twenty-two (22) projects in the 2024 HCIP together with three (3) project development (PD) accounts for program-level expenditures for each of the Water, Power, and Joint Programs.

Program Current Status:

As of the end of the reporting period, the status of the 22 HCIP projects (excluding for these purposes the 3 PD accounts) is as follows: three (3) projects are not yet initiated; eleven (11) projects in planning, design, or bid & award; three (3) projects in construction; four (4) projects that have subprojects in multiple phases including construction; and one (1) project in closeout.

The following Tables provide a high-level summary of the cost and schedule status for this program (including the 3 PD accounts).

Approved Budget for Projects in Each Phase

ii
HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24) Table A shows the Current Approved Budget and Current Forecast Cost of $2,016.81 million and $2,054.00 million, respectively. Reasons for the cost variances are included in Section 7 of this report.

* Negative number is reflecting cost increases since last quarter, and positive number is reflecting cost reduction since last quarter.

* “A” is used after a date to represents an actual date as opposed to a forecast or approved date.

Program Key Updates:

Some projects decreased in overall percentage completion compared to the last quarter due to scope/ budget/ schedule increases that were approved according to the last 10-year CIP.

The key updates for the HCIP include:

 For the SJPL Valve and Safe Entry Improvemen ts project, all valves for Phase 1A (HH-1005) passed factory acceptance tests, and the contractor mobilized to prepare for fieldwork. Phase 2A (HH-1012), the contractor began removing existing crossover valves. For Phases 2B & 2C (HH-1016), the construction contract was advertised in November 2024, with bids expected next quarter, and the team is evaluating quotes for pre-purchasing valves. In Phase 3 (HH-1009), the contractor completed the new spillway and installed 60-inch surge pipes, with the tie-in pending.  For the Moccasin Powerhouse Bypass Upgrades project, the 65% design package review is complete and project team is progressing with the 95% design deliverable.  For the Moccasin Powerhouse and Generator Step-Up (GSU) Rehabilitation project, during this quarter, the contractor for Subproject B (contract DB-121R2) is on schedule and installed the Table A. Program Cost Summary
Program

Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q2/FY24-25
Forecast
Costs
($ Million)
(C)

Cost
Variance
($ Million)
(D = B - C)
Cost Variance
Over
Reporting
Period *
($ Million)
(E)
Program Total $403.80 $2,016.81 $2,054.00 ($37.19) ($3.07) Table B shows the Approved and Forecast Completion Dates.

Table B. Current Approved vs. Current Forecast Schedule Dates

Program
Current
Approved
Project
Start
Actual
Start
Current
Approved
Completion
Current
Forecast
Completion
Schedule
Variance
(Months)
Overall
HCIP Program 10/03/11 10/03/11 A* 12/31/41 12/31/41 -

iii
HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24) new stator and rotor of Generator M1 in December. For Subproject C, the design team is incorporating 65% design package comments into the 95% design deliverable.  For the Warnerville Substation Rehabilitation – Phase 2 project, the bid & award phase is delayed because the bid documents were revised to incorporate PG&E’s design review comments. PG&E provided design review comments after 100% design documents were completed.
 For the Moccasin Switchyard project, a draft Needs Assessment Report was completed.  For the Moccasin Penstock Rehabilitation project, the revised draft Alternative Analysis Report was updated with the results from the second round of evaluation exercise.  For the Moccasin Engineering & Records Building project, the schematic design was completed.  The Moccasin Warehouse Building project was initiated and the planning phase began.  For the O’Shaughnessy Dam Outlet Works Phase 1 Subproject A (contract DB-135 for bulkheads rehabilitation), the new bulkheads were delivered, installed and tested in Slots 1 and

2. For Subproject B (contract HH-1015 Drainage & Miscellaneous Dam Improvements), Notice- To-Proceed for HH-1015 was issued and construction has begun. For Subproject C (contract HH-1011 Instream Flow Release Valve Replacement), the Instream Flow Releases system is operational, and punchlist items are being addressed. For Subproject D (Slide Gates) and Subproject E ( Drum Gates), the draft Needs Assessment and Alternative Analysis Report are under review.
 For the Moccasin Dam & Reservoir Long-Term Improvements project, the Conceptual Engineering Report was finalized, awaiting signatures.
 For the Cherry Dam Spillway - Short Term Improvements project, the consultant delivered the 35% design package for review.
 For the Eleanor Dam Rehabilitation and the Interim Bridge Repair subproject, the project team is coordinating a ‘mock-up’ test for proposed bridge overlay materials, which is scheduled for Spring 2025. The testing of the proposed bridge overlay materials is required to ensure that the selected product will meet the project objectives. For Eleanor Dam and Bridge Long-Term Rehabilitation subproject, the project team received the draft Needs Assessment Review Memo and Erodibility Analysis Report.
 For the Early Intake Dam – Long Term project, review of the biological and topographic surveys was completed. The draft Alternatives Analysis Report was issued this quarter, which is currently under internal review.
 For the Mountain Tunnel Improvements Project Subproject A (HH-1000R) contract, the contractor was issued a Non-Conformance Notice (NCN) for the Flow Control Building foundations which will require demolition of the faulty walls and foundation. The large cut walls were completed on the Adit 5/6 and 8/9 roadways. Contractor set up for the upcoming shutdown which included commissioning the construction water treatment plant, installing the grout plants for in-tunnel contact grouting, staging shotcrete in Adit 8/9, and preparing ventilation fans. Shutdown No. 4 and in-tunnel work began on December 16, 2024.

Negotiations for removal of work scope concluded with Commission approval to modify the contract anticipated next quarter. Staff is working on obtaining approval for an alternative delivery method to complete the remaining work. Subproject B (HH-1013) Moccasin Water System Filtration Plant: Construction is progressing, and a design change is required for one of the building support walls due to the bedrock being lower than anticipated.

iv
HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)  For Transmission Line Clearance Mitigation – Moderate and Low Risk Project, the Alternative Analysis Report, Design Criteria Report, and Conceptual Engineering Report were all finalized and are being routed for HHWP signatures. Contract specification development is ongoing.  For the Moccasin Wastewater Treatment Plant Replacement (contract HH-1010) project, the contractor is mobilized, and the team is reviewing submittals.

TABLE OF CONTENTS
HETCH HETCHY WATER AND POWER (HHWP) – WATER DIVISION

CAPITAL IMPROVEMENT PROGRAMS

INTRODUCTION

HETCH HETCHY CAPITAL IMPROVEMENT PROGRAM (HCIP)

1. Program Description

2. Program Status

3. Program Cost Summary

4. Program Schedule Summary

5. Budget and Schedule Trend Summary

6. Project Performance Summary

7. Project Status Report

8. On-Going Construction

9. Projects
in Closeout

10. Complet
ed Projects

APPENDICES
A. Project Descriptions
B. Approved Project Level Budgets/Schedules
C. List of Acronyms

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HETCH HETCHY WATER AND POWER (HHWP)–

WATER DIVISION CAPITAL IMPROVEMENT PROGRAMS

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HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

INTRODUCTION
The Hetch Hetchy Water and Power (HHWP) Water Division is responsible for operating, managing, and maintaining the HHWP system and facilities. This includes water facilities that are part of the Regional Water System from Hetch Hetchy Reservoir, located in Yosemite National Park, to Alameda East Portal, located in Sunol Valley and power facilities located from Early Intake to Newark. The HHWP Water Division operates, manages, and maintains three impoundment reservoirs, three regulating reservoirs, four powerhouses, one switchyard, three substations, 170 miles of pipeline and tunnels, almost 50 miles of paved road, over 160 miles of transmission lines, watershed land, and right- of-way property. HHWP Water Division provides 85 percent of the San Francisco Public Utilities Commission (SFPUC) water supply for 2.7 million residential, commercial, and industrial customers in Alameda, Santa Clara, San Mateo, and San Francisco counties. On average, HHWP Water Division generates about 1,650 gigawatt hours (GWH) of clean hydro-generated power annually. A majority of HHWP staff is based in Moccasin, CA, which is 140 miles east of San Francisco.

The HHWP Water Division’s capital improvement pr ograms are divided into two programs: Hetch Hetchy Capital Improvement Program (HCIP) and Renewal and Replacement (R&R). This report provides a quarterly status update on the HCIP, a gr oup of capital improvement projects that are greater than $5M in value and have been approved by the Commission as part of the SFPUC’s 10-Year Capital Improvement Program. The status of the Hetc h Hetchy R&R projects is reported annually in the Annual Report on Water Enterprise-Managed Capital Improvement Projects.

The map below shows the location of the assets and facilities associated with HHWP.

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HETCH HETCHY CAPITAL IMPROVEMENT PROGRAM (HCIP)

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HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

1. PROGRAM DESCRIPTION
The Hetch Hetchy Capital Improvement Program (HCIP) is a group of multi-year capital projects to upgrade existing, aging infrastructure so that it will meet the challenges of today and the future. These projects will deliver improvement s that enhance the SFPUC’s ability to provide reliable, affordable, high-quality water to its 2.7 million customers in an environmentally sustainable manner. The goals are 1) to provid
e capital improvements needed to cost -effectively ensure that water quality, seismic reliabilit
y, delivery reliability, and water supply objectives established for the Regional Water System facilit
ies managed by HHWP are met, and 2) to optimize the benefits of HHWP power faciliti es operations.

Ongoing development of the HCIP will sustain t he Regional Water System’s status as an unfiltered
water source and a gravity-driven system.

The scope
of HCIP is divided into three major project types: Water, Power, and Joint. The Water sub- program includes only asset improvements benefiting the SFPUC’s water customers. The Power sub- program includes only asset improvements used to generate environmentally friendly hydroelectric energy. The Joint sub-program includes projects for assets that are used for both water delivery and power generation. In addition, projects in each sub-program of the HCIP have been further organized by asset type consisting of the following:

Water Infrastructure
 Water Conveyance – projects to enhance the reliability of water delivery through pipelines and penstocks, allowing for both delivery of water to SFPUC customers and delivery of water to powerhouses for power generation.

Power Infrastructure
 Powerhouse – projects to improve facilities at the Holm, Kirkwood, and Moccasin powerhouses.  Switchyard & Substations – projects to meet operational objectives for power, including reliability, regulatory compliance, and sustainability.  Transmission Lines – projects to expand or improve power assets for electricity transmission.

Joint (Water and Power) Infrastructure
 Dams & Reservoirs – projects to improve assets used for storage and delivery of water to SFPUC customers, as well as for water storage for power generation.  Mountain Tunnel – projects to address deficiencies with the Mountain Tunnel, a critical, non- redundant link in the Hetch Hetchy and Regional Water System that conveys water from Kirkwood Powerhouse to Priest Reservoir.
 Roads & Bridges – projects to repl ace or improve bridges that are utilized to access HHWP assets.
 Tunnels – projects to repair tunnels along the HHWP system (other than Mountain Tunnel).  Utilities – projects to expand or improve utilities for asset and work locations such as water and wastewater treatment faciliti
es.
 Buildings – projects to provide safe and code compliant workspaces. 1 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

2. PROGRAM STATUS
This Quarterly Report presents the progress made on HCIP between October 1, 2024 and December 31, 2024. This document serves as the second (2 nd) Quarterly Report in Fiscal Year 2024-2025 (FY25) published for the HCIP.

This quarterly report includes all HCIP projects in the Hetch Hetchy Water Capital Improvement Program according to the 10-Year Capital Plan for FY2024-25 to FY2033-34 (FY25-34 CIP), presented to and adopted by the Commission on February 13, 2024, under Resolution No. 24-0032 (2024 HCIP).

The 2024 HCIP is a subset of the Hetch Hetchy Water 10-Year CIP for FY2025-2034 and includes individual projects over $5 million that were then currently active or intended to be active by July 1, 2024 at the time proposed to the Commission on February 13, 2024. This baseline for comparison will remain the same until adoption of a new 10-Year CIP; the baseline will be updated with the changes in the adopted CIP at the start of the new fiscal year following adoption.

There are twenty-two (22) projects in the 2024 HCIP together with three (3) project development (PD) accounts for program-level expenditures for each of the Water, Power, and Joint Programs. A description of each project and of each project development account is provided in the Appendix A of this report.

The accrued PD expenditures are included in the Cost Summary in Table 3 in order to give an accurate report of the overall HCIP cost performance.

Figure 2.1 shows the total Approved Budget for all twenty-two (22) projects in each phase of the program as of December 31, 2024 (PD accounts do not have phases and are not included in Figure

2.1). The number of projects currently in each phase is shown in parentheses.

Figure 2.1 Approved Budget for Projects in Each Phase
2 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24) Figure 2.2 shows the total number of projects in t he following stages as of December 31, 2024: Pre- construction, Construction, and Post-construction.

Figure 2.3 summarizes the environmental review status of the HCIP projects as of December 31, 2024.

Environmental review is performed for projects under California Environmental Quality Act (CEQA).

Figure 2.2 Number of Projects in Pre-construction, Construction, and Post-Construction Figure 2.3 Program Environmental Review

3 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

3. PROGRAM COST SUMMARY
Table 3 provides an overall cost summary of the 22 HCIP projects and 3 HCIP PD accounts at the end of the quarter. It shows the Expenditures to Date, Current Approved Budget, Current Forecast Cost, the Cost Variance between the Approved and Forecast Costs, and the Cost Variance Over the Reporting Period (difference between cost forecasts reported in Q1/FY2024-25 and in Q2/FY2024-25). The Current Approved Budget and Forecast Cost for the HCIP are $2,016.81 million and $2,054.00 million, respectively.

The overall 2024 HCIP negative Cost Variance of $37.19 million in Table 3 can be attributed to the following projects and their variances are provided below: the reasons for the project variances are reported in section 7:

 The 10014086 Moccasin Powerhouse and GSU Rehabilitation had a continuation of $13.48M negative variance from Q4 of FY23/24, and a forecast cost increase of $2.15M during the quarter for a total of $15.63M negative variance.
 The 10014087 Warnerville Substation Rehabilitation Project forecast cost increased by $0.92M during the quarter.
 The 10035721 Transmission Lines 7/8 Upgrades $1.90M positive variance is a continuation from Q4 of FY23/24.
 The 10037351 Moccasin Dam & Reservoir Long-Term Improvements $22.54M negative variance is a continuation from Q1 of FY24/25.

Subprograms

Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q2/FY2024-25
Forecast
Costs
($ Million)
(C)

Cost
Variance
($ Million)
(D = B - C)
Cost
Variance
Over
Reporting
Period *
($ Million)
(E )
Water Infrastructure $54.35 $209.41 $209.41 - -
Water Conveyance (Water) $48.65 $196.49 $196.49 - -
Water Infrastructure
Project Development $5.70 $12.91 $12.91 - -
Power Infrastructure $132.33 $376.41 $391.06 ($14.65) ($3.07) Dams & Reservoir (Power) $0.39 $38.80 $38.80 - -
Powerhouse $52.09 $141.61 $157.24 ($15.63) ($2.15)
Switchyard & Substations
(Power) $27.14 $57.12 $58.04 ($0.92) ($0.92)
Transmission Lines $47.88 $121.01 $119.11 $1.90 -
Power Infrastructure
Project Development $4.83 $17.87 $17.87 - -
Joint Infrastructure $217.12 $1,431.00 $1,453.54 ($22.54) - Water Conveyance (Joint) $8.57 $331.17 $331.17 - -
Buildings (Joint) $1.84 $115.02 $115.02 - -
Table 3. Cost Summary
4 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24) Subprograms

Expenditures
To Date
($ Million)
(A)
Current
Approved
Budget
($ Million)
(B)
Q2/FY2024-25
Forecast
Costs
($ Million)
(C)

Cost
Variance
($ Million)
(D = B - C)
Cost
Variance
Over
Reporting
Period *
($ Million)
(E )
Dams & Reservoirs (Joint) $35.05 $598.86 $621.40 ($22.54) - Mountain Tunnel $154.80 $268.67 $268.67 - -
Powerhouse (Joint) $0.89 $13.47 $13.47 - -
Tunnels (Joint) $2.33 $30.14 $30.14 - -
Utilities (Joint) $3.06 $15.38 $15.38 - -
Joint Infrastructure Project
Development $10.58 $58.29 $58.29 - -
Overall Program Total $403.80 $2,016.81 $2,054.00 ($37.19) ($3.07) * Negative number is reflecting cost increases since last quarter, and positive number is reflecting cost reduction since last quarter.

4. PROGRAM SCHEDULE SUMMARY
Figure 4 and Table 4 compare the FY2025–2034 CIP Approved Schedule and the Current Forecast Schedule for the HCIP. As shown in Table 4, the HCIP approved and forecast schedule is December 2041.

Figure 4. Program Schedule Summary
5 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24) * “A” is used after a date to reference an actual date as opposed to a forecast or approved date.

5. BUDGET AND SCHEDULE TREND SUMMARY
This Table 5 contains all approved HCIP projects that are active and in any of the planning, design, bid and award, or construction phases. The table excludes all Project Development accounts, as well as any projects that are either not-initiated, on-hold, in closeout, or completed.

During this Quarter (Q2 FY2024-25), the following major project milestones were achieved:

 Construction contract was advertised for SJPL Valve and Safe Entry Improvement Phase 2B/2C (HH-1016).
 Construction final completion was achieved for Warnerville Substation Rehabilitation Project Phase 1 (DB-127R).
 Construction contract Notice-to-Proceed was issued for O’Shaughnessy Dam Outlet Works Phase 1 Subproject B (HH-1015).
 The Moccasin Warehouse Building project was initiated and the planning phase began.

Table 4. FY2025-2034 CIP Approved vs. Current Forecast Schedule Dates

Sub-Program
CIP
Approved
Project
Start
Actual
Start
CIP
Approved
Completion
Current
Forecast
Completion
Schedule
Variance
(Months)
Water Infrastructure 03/26/12 03/26/12 A* 06/30/34 06/30/34 - Power Infrastructure 05/29/12 05/29/12 A* 06/30/34 06/30/34 - Joint Infrastructure 10/03/11 10/03/11 A* 12/31/41 12/31/41 - Overall
HCIP Projects 10/03/11 10/03/11 A* 12/31/41 12/31/41 - 6 All Costs are shown in million
Approved
Budget
Approved
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
ab c d e f g h i j k l m n
Water Infrastructure
10035575 - SJPL Valve and Safe Entry Improvement
Phase 1A
Phase 1B
Phase 2A
Phase 2B/2C
Phase 3
Power Infrastructure
$41.1 12/01/27 $15.0 12/01/27 $40.7 12/01/27 $41.1 12/01/27 TBD TBD TBD TBD $41.1 12/01/27 10014086 - Moccasin Powerhouse and GSU Rehabilitation
Phase 1
Phase 2
Phase 3
$83.7 06/30/29 $83.7 06/30/29 $83.7 06/30/29 TBD TBD TBD TBD TBD TBD $83.7 06/30/29 10014087 - Warnerville Substation R ehabilitation
Phase A - DB-127R
Phase B - Contingency Plan
Phase C - HH-1008
$19.7 01/31/30 $9.7 11/30/28 TBD TBD TBD TBD TBD TBD TBD TBD $19.7 01/31/30 Joint Infrastructure
$331.2 12/08/34 $13.2 12/31/24 TBD TBD TBD TBD TBD TBD TBD TBD $331.2 12/08/34 $88.7 05/31/29 $60.7 06/30/31 $88.7 05/31/29 $88.7 05/31/29 TBD TBD TBD TBD $88.7 05/31/29 $26.3 04/01/31 $26.3 04/01/31 $26.3 04/01/31 $26.3 04/01/31 $26.3 04/01/31 $26.3 04/01/31 $26.3 04/01/31 03/02/29
03/13/26
10039680 - Moccasin Engineering and Records Building
4 FY2025-34 12/14/22 05/31/24 11/01/24 06/30/26 09/21/26 Q2 - FY2024-25 Table 5. Budget and Schedule Trend Summary
$34.2 $34.2 $37.4 $38.3$38.311/25/26 11/25/26 11/25/26 11/25/26 04/16/21
03/03/21 (Phase 1A),
05/28/21 (Phase 1B),
08/19/22 (Phase 2) &
12/30/21 (Phase 3)
Q2 - FY2024-25
11/26/25 Q2 - FY2024-25
Q2 - FY2024-2509/03/26 03/05/27
FY2025-34
$157.8 02/28/29$95.3 07/01/25 $98.9
Current StatusCER Awarded Construction
135% Design 95% Design
Q2 - FY2024-25
02/28/29 $157.8 02/28/29
03/08/22 (Phase 1A),
08/23/22 (Phase 1B),
02/27/24 (Phase 2A),
04/04/25 (Phase 2B/2C) &
01/09/24 (Phase 3)
$157.8 02/28/29 $95.3
Most Recent CIP
Approved Budget
03/31/23 03/13/24 02/28/25
03/13/28
Project Name
FY2025-34 09/18/20
10036809 - Moccasin Powerhouse Bypass Upgrades
$157.807/01/25
Project Initiation
FY2025-34 09/18/20
07/01/19
07/14/21 (Phase 1A),
10/29/21 (Phase 1B),
06/08/23 (Phase 2A),
05/21/24 (Phase 2B/2C) &
03/31/23 (Phase 3)
04/13/21 (Phase 1),
05/11/21 (Phase 2) &
01/16/26 (Phase 3)
03/06/31
$100.6
10014088 - Moccasin Penstock Rehabilitation
FY2025-34 02/03/14
FY2025-34 09/01/15 (Phase A),
01/01/21 (Phase B)
$27.2$37.4 11/25/26
12/31/28 $18.0 10/03/18
05/14/21
07/29/19 (Phase 1),
10/01/19 (Phase 2) &
12/29/23 (Phase 3)
09/09/20 (Phase 1),
05/11/22 (Phase 2) &
05/06/25 (Phase 3)
10039568 - Moccasin Switchyard Rehabilitation
FY2025-34 11/01/22
10014089 - Transmission Line Clearance Mitigation
FY2025-34 07/01/17
$116.2 12/31/2812/03/2712/03/2712/31/28
01/03/29
04/13/27
02/29/16 (Phase A),
04/28/23 (Phase B)
04/01/16 (Phase A),
06/30/23 (Phase B)
12/24/16 (Phase A),
03/20/24 (Phase B)
05/23/17 (Phase A),
09/09/25 (Phase B) Q2 - FY2024-25
01/03/29
$66.7 $100.6 $66.7 $66.7
12/16/24 12/31/25 06/30/26 08/31/25 Q2 - FY2024-25
08/17/26 07/19/27 04/20/28 Q2 - FY2024-25
10041727 - Moccasin Warehouse Building
FY2025-34 10/15/24 TBD TBD TBD TBD Q2 - FY2024-25
7 All Costs are shown in million
Approved
Budget
Approved
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
Forecast
Cost
Forecast
Completion
ab c d e f g h i j k l m n
Water Infrastructure
Table 5. Budget and Schedule Trend Summary (continued) Current StatusCER Awarded Construction135% Design 95% DesignMost Recent CIP Approved Budget
Project Name
Project Initiation
10032903 - O'Shaughnessy Dam Outlet Works Phase I2
Subproject A
Subproject B
Subproject C
Subproject D (Planning Only)
Subproject E (Planning Only)
$142.2 12/31/34 $83.2 07/01/27 $164.7 12/31/34 TBD TBD TBD TBD TBD TBD $164.7 12/31/34 $14.9 06/30/27 $11.9 07/01/27 $14.9 06/30/27 $14.9 06/30/27 TBD TBD TBD TBD $14.9 06/30/27 $100.1 12/31/35 $88.7 06/30/31 TBD TBD TBD TBD TBD TBD TBD TBD $100.1 12/31/35 10030759 - Eleanor Dam Rehabilitation
Subproject A
Subproject B
$268.7 06/03/27 $114.0 12/30/21 $246.1 12/31/26 $238.2 12/31/26 $238.2 12/31/26 $238.2 06/03/27 $268.7 06/03/27 $13.5 07/01/32 $12.2 01/31/25 TBD TBD TBD TBD TBD TBD TBD TBD $13.5 07/01/32 $30.1 12/31/30 $0.5 06/30/16 $15.0 12/30/26 $8.0 06/30/18 $30.1 12/31/30 TBD TBD $30.1 12/31/30 $15.4 02/20/28 $8.8 04/07/26 - - $8.8 04/07/26 $12.0 04/07/26 $15.4 02/20/28 $15.4 02/20/28 Footnotes:

1. This represents forecast project cost and project completion date at the time of award of construction contract (or award of CM/GC or Design-Build contracts/packages).

2. This represents that Subproject A will be doing Progressive Design Build during Construction. S ubproject B is in the process of finalizing the design. Subprojects D & E w ill not be doing CER.

3. This represents that the project started during the Design Phase.

4. This is a building project which follows a different set of milestones. Dates shown for CER, 35% Design, and 95% Design abo ve are for Conceptual Design, Schematic Design, and Contract Document.

5. Dates shown are for 50% Design and 100% Design.
$113.9 TBD TBD TBD
05/30/25
06/28/30
02/28/26
09/30/33 Q2 - FY2024-25
FY2025-34 03/01/21 06/28/24 11/22/24 05/16/25 12/31/25 Q2 - FY2024-25 FY2025-34
Q2 - FY2024-25
$48.0 $48.0 $43.7
03/18/24 (Subproject A)
5,
N/A (Subproject B) &
12/23/22 (Subproject C)
06/13/23 (Subproject A),
08/13/24 (Subproject B) &
06/13/23 (Subproject C)
01/31/29 01/31/31 Q2 - FY2024-25
10014115 - Cherry Dam Spillway - Short Term Improvements 06/30/2612/31/24
02/03/14 03/17/23 03/30/16 12/13/24 02/16/27 Q2 - FY2024-25 02/27/24
Q2 - FY2024-25
04/29/22
TBD TBD TBD $113.9 12/31/38
$43.709/16/25 09/16/25 09/16/25 06/30/26
FY2025-34 02/01/18
09/30/21 (Subproject A),
Complete (Subproject B),
09/30/22 (Subproject C),
N/A (Subproject D) &
N/A (Subproject E)
01/12/24 (Subproject A)5,
N/A (Subproject B) &
11/16/22 (Subproject C)
$43.7 $17.2 $47.912/31/25
10014110 - Moccasin Wastewater Treatment Plant3
FY2025-34 01/03/22
07/01/23 07/31/25 01/31/27
FY2025-34 06/01/20 09/04/24
06/30/27
01/31/25
06/30/28
10039119 - Early Intake Dam – Long Term
$113.9 12/31/38 $113.9 12/31/38 12/31/38
Q2 - FY2024-25
FY2025-34
10037077 - Moccasin Old Powerhouse Hazard Mitigation
FY2025-34 01/01/21 01/31/25 03/04/29 11/06/29 06/17/30 Q2 - FY2024-25 - 03/23/23
10014108 - Canyon Tunnel - Hetchy Adit Rehab & OSH Bridge 10014114 - Mountain Tunnel Improvement Project
FY2025-34 10/03/11 12/29/17 05/15/18 07/31/19 10/13/20 Q2 - FY2024-25 10037351 - Moccasin Dam & Reservoir Long-Term Improvements FY2025-34 05/03/21 09/30/24 03/06/26 03/06/28 12/04/29
8 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

6. PROJECT PERFORMANCE SUMMARY* All costs are shown in $1,000s Project Name Active
Phase
(a)
CIP
Approved
Budget
(b)
Current
Approved
Budget
(c)
Current
Forecast
Cost
(d)
Expenditures
to Date
(e)
Cost
Variance
(f=c-d)
% Cost
Changes
(g=f/c)
CIP
Completion
Date
(h)
Approved
Completion
Date
(i)
Forecast
Completion
Date
(j)
Schedule
Variance
(Days)
(k=i-j)
(**) (+) (++) (+++) (+++) (+) (++) (+++)
Water Infrastructure
Water Conveyance (Water)
10035575 SJPL
Valve and Safe
Entry
Improvement
MP $157,752 $157,752 $157,752 $48,653 $0 0% 02/28/29 02/28/29 02/28/29 0 Power Infrastructure
Powerhouse
10036809 HHW -
Moccasin
Powerhouse
Bypass Upgrade
DS $41,056 $41,056 $41,056 $2,441 $0 0% 12/01/27 12/01/27 12/01/27 0 10014086
Moccasin
Powerhouse and
GSU
Rehabilitation
MP
$100,556 $100,556 $116,185 $49,650 ($15,629) (16%) 12/31/28 12/31/28 12/31/28 0 Transmission Lines
10014089
Transmission
Lines Clearance
Mitigation
BA $83,681 $83,681 $83,681 $15,396 $0 0% 06/30/29 06/30/29 06/30/29 0 * Does not include projects in closeout, completed, not initiated, on hold, deleted projects, and projects combined with other projects. ** Phase Status Legend
PL Planning DS Design
BA Bid & Award CN Construction MP Multi-Phase
Footnotes:
(+) CIP Approved Budget and Project Completion Date: The budget and schedule approved as part of 10-year CIP for FY25-34.
(++) Current Approved Budget and Schedule: The budget and schedule approved as part of 10- year CIP for FY25-34, plus any additional budget and schedule changes approved by the Commission as part of construction contract award.
(+++) Negative number reflects cost overrun (or schedule delay) and positive number reflects cost underrun (or ahead of schedule). Projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted in grey. 9 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) Project Name Active
Phase
(a)
CIP
Approved
Budget
(b)
Current
Approved
Budget
(c)
Current
Forecast
Cost
(d)
Expenditures
to Date
(e)
Cost
Variance
(f=c-d)
% Cost
Changes
(g=f/c)
CIP
Completion
Date
(h)
Approved
Completion
Date
(i)
Forecast
Completion
Date
(j)
Schedule
Variance
(Days)
(k=i-j)
(**) (+) (++) (+++) (+++) (+) (++) (+++)
Switchyard & Substations (Power)
10014087
Warnerville
Substation
Rehabilitation
Project
CN $37,407 $37,407 $38,328 $26,768 ($921) (2%)
11/25/26 11/25/26 01/03/29 (770)
10039568
Moccasin
Switchyard
Rehabilitation
PL $19,708 $19,708 $19,708 $374 $0 0% 01/31/30 01/31/30 01/31/30 0 Joint Infrastructure
Water Conveyance (Joint)
10014088
Moccasin
Penstock
Rehabilitation
PL $331,172 $331,172 $331,172 $8,568 $0 0% 12/08/34 12/08/34 12/08/34 0 Buildings (Joint)
10039680
Moccasin
Engineering and
Records Building
DS $88,734 $88,734 $88,734 $1,833 $0 0% 05/31/29 05/31/29 05/31/29 0 * Does not include projects in closeout, completed, not initiated, on hold, deleted projects, and projects combined with other projects. ** Phase Status Legend
PL Planning DS Design
BA Bid & Award CN Construction MP Multi-Phase
Footnotes:
(+) CIP Approved Budget and Project Completion Date: The budget and schedule approved as part of 10-year CIP for FY25-34.
(++) Current Approved Budget and Schedule: The budget and schedule approved as part of 10- year CIP for FY25-34, plus any additional budget and schedule changes approved by the Commission as part of construction contract award.
(+++) Negative number reflects cost overrun (or schedule delay) and positive number reflects cost underrun (or ahead of schedule). Projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted in grey. 10 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) Project Name Active
Phase
(a)
CIP
Approved
Budget
(b)
Current
Approved
Budget
(c)
Current
Forecast
Cost
(d)
Expenditures
to Date
(e)
Cost
Variance
(f=c-d)
% Cost
Changes
(g=f/c)
CIP
Completion
Date
(h)
Approved
Completion
Date
(i)
Forecast
Completion
Date
(j)
Schedule
Variance
(Days)
(k=i-j)
(**) (+) (++) (+++) (+++) (+) (++) (+++)
10041727
Moccasin
Warehouse
Building
PL $26,290 $26,290 $26,290 $3 $0 0% 04/01/31 04/01/31 04/01/31 0 Dams & Reservoirs (Joint)
10032903
O'Shaughnessy
Dam Outlet Works
Phase 1
MP $43,731 $43,731 $43,731 $25,823 $0 0%
12/31/25 12/31/25 06/30/26 (181)
10037351
Moccasin Dam &
Reservoir Long
Term
Improvement
PL
$142,188 $142,188 $164,728 $5,116 ($22,540) (16%) 12/31/34 12/31/34 12/31/34 0 10014115 Cherry
Dam Spillway -
Short Term
Improvements
DS $14,886 $14,886 $14,886 $2,633 $0 0% 06/30/27 06/30/27 06/30/27 0 10030759 Eleanor
Dam
Rehabilitation
MP $113,874 $113,874 $113,874 $770 $0 0% 12/31/38 12/31/38 12/31/38 0 10039119 Early
Intake Dam - Long
Term
PL $100,072 $100,072 $100,072 $709 $0 0% 12/31/35 12/31/35 12/31/35 0 Mountain Tunnel
* Does not include projects in closeout, completed, not initiated, on hold, deleted projects, and projects combined with other projects. ** Phase Status Legend
PL Planning DS Design
BA Bid & Award CN Construction MP Multi-Phase
Footnotes:
(+) CIP Approved Budget and Project Completion Date: The budget and schedule approved as part of 10-year CIP for FY25-34.
(++) Current Approved Budget and Schedule: The budget and schedule approved as part of 10- year CIP for FY25-34, plus any additional budget and schedule changes approved by the Commission as part of construction contract award.
(+++) Negative number reflects cost overrun (or schedule delay) and positive number reflects cost underrun (or ahead of schedule). Projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted in grey. 11 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) Project Name Active
Phase
(a)
CIP
Approved
Budget
(b)
Current
Approved
Budget
(c)
Current
Forecast
Cost
(d)
Expenditures
to Date
(e)
Cost
Variance
(f=c-d)
% Cost
Changes
(g=f/c)
CIP
Completion
Date
(h)
Approved
Completion
Date
(i)
Forecast
Completion
Date
(j)
Schedule
Variance
(Days)
(k=i-j)
(**) (+) (++) (+++) (+++) (+) (++) (+++)
10014114
Mountain Tunnel
Improvement
Project
CN $268,669 $268,669 $268,669 $154,804 $0 0% 06/03/27 06/03/27 06/03/27 0 Powerhouse (Joint)
10037077
Moccasin Old
Powerhouse
Hazard Mitigation
PL $13,475 $13,475 $13,475 $894 $0 0% 07/01/32 07/01/32 07/01/32 0 Tunnels (Joint)
10014108 Canyon
Tunnel - Hetchy
Adit Rehab &
OSH Bridge
DS $30,138 $30,138 $30,138 $2,330 $0 0% 12/31/30 12/31/30 12/31/30 0 Utilities (Joint)
10014110
Moccasin
Wastewater
Treatment Plant
CN $15,377 $15,377 $15,377 $3,061 $0 0% 02/20/28 02/20/28 02/20/28 0 * Does not include projects in closeout, completed, not initiated, on hold, deleted projects, and projects combined with other projects. ** Phase Status Legend
PL Planning DS Design
BA Bid & Award CN Construction MP Multi-Phase
Footnotes:
(+) CIP Approved Budget and Project Completion Date: The budget and schedule approved as part of 10-year CIP for FY25-34.
(++) Current Approved Budget and Schedule: The budget and schedule approved as part of 10- year CIP for FY25-34, plus any additional budget and schedule changes approved by the Commission as part of construction contract award.
(+++) Negative number reflects cost overrun (or schedule delay) and positive number reflects cost underrun (or ahead of schedule). Projects with a forecasted cost overrun greater than 10%, or forecasted delay of greater than 6 months or 10%, will be highlighted in grey. 12 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

7. PROJECT STATUS REPORT
10035575 - SJPL Valve and Safe Entry Improvement
Project Description: San Joaquin
Pipeline (SJPL) Nos. 1, 2, and 3 consist of three parallel transmission pipelines (completed in 1932, 1953, and 1968, respectively) that cross the San Joaquin Valley from the east of Foothill Tunnel at Oakdale Portal to the west of Coast Range Tunnel at Tesla Portal, a distance of approximately 48 miles. A fourth partial pipeline (SJPL 4 completed in 2012) consists of a 6.4-mile segment of pipe downstream of Oakdale and another 11-mile segment upstream of Tesla Portal. SJPLs deliver Tuolumne River water to the San Francisco Bay Area. They have been in service ranging from 11 to 91 years. SFPUC staff members and contractors need to enter the pipelines regularly to perform condition assessment, maintenance, and repair work. A recent hydraulic study shows that several of the existing valves in the SJPLs may be under-rated for the potential surge pressures that could be triggered from an unplanned closure of the valves at the downstream Tesla Ultraviolet Treatment Facility. For safety reasons, the SFPUC initiated this capital project to increase the pressure rating of the valves, provide safe pipeline isolations for personnel entry into the pipelines, and allow shutdown of any section of the SJPLs without a complete system shutdown.

Program: Water Infrastructure Project Status: Multi-Phases Environmental Status: Completed (Cat Ex)
Project Cost:

Approved
Forecast
Actual
$ 157.75 M
$ 157.75 M
$ 48.65 M
Project Schedule:

Approved
Forecast
07/01/19
07/01/19
02/28/29
02/28/29
Project Percent Complete: 34.4%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 01/27/22 A 12/25/21 A 05/16/22 A 03/14/25
B 01/27/22 A 04/21/22 A 11/07/22 A 09/11/24 A
C 01/27/22 A 11/28/23 A 05/13/24 A 07/07/25
D 01/27/22 A 11/21/24 A 06/03/25 08/30/28
E 08/10/22 A 09/21/23 A 02/26/24 A 05/22/25
Progress and Status:

This project is
divided into five (5) sub-projects, (A) Phase 1A
– Pipeline 2 Tesla & Oakdale Entry Improvements –
HH-1005; (B) Phase 1B – Pipelines 3&4 Tesla & Oakdale
Entry Improvements - HH-1006; (C) Phase 2A – Crossover
Valve Improvement pipelines 2&3 – HH-1012; (D) Phase
2B/2C –Removable Spool Piece and Valve Improvements at
Crossovers and P4J - HH-1016; and (E) Phase 3 - Tesla
Surge Tower – HH-1009. For Phase 1A, all valves passed the factory acceptance tests. The contractor mobilized to the site and was preparing to start field work by end of this quarter.

For Phase 1B, the project team started closing out the
contract. For Phase 2A, the contractor began removing the existing crossover valves. For Phases 2B & 2C, HH-1016
construction contract was advertised in November 2024, with bids expected next quarter. The project team is evaluating quotes from two contractors for pre-purchasing Phase 2B valves. For Phase 3, the contractor completed the new
spillway and continues to install the new 60-inch diameter surge pipes with the exception of the tie-in location.

Issues and Challenges:

The long lead time of the valve procurement will not allow the contractor of the new HH-1016 to purchase the valves for Phase 2B in time to install them during the system shutdown Reinforced Concrete Spillway Rebuilt at Tesla Surge Tower Site by end of 2025. The project team will seek Commission
approval to pre-purchase the valves for Phase 2B under an existing contract to help meet the schedule. Also, the California Department of Fish and Wildlife (CDFW) has
recently begun prohibiting the placement of permanent
geotextile fabric (plastic) within jurisdictional waterbodies. The project team will need to seek Commission approval to
extend duration of contract HH-1009 to allow time to revise the design and complete the drainage work during the 2025 dry season to meet the new requirements.
13 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10036809 - HHW - Moccasin Powerhouse Bypass Upgrade
Project Description: Provide
a reliable hydraulic bypass and energy dissipation system, conveying water around the turbines to the Moccasin Powerhouse Tailrace. Upgrade/replace high-pressure energy-dissipating valves, control systems, and associated structures to absorb 1,147 feet of pressure head and 430 cubic feet per second flow without damage.

Program: Power Infrastructure Project Status: Design Environmental Status: Active (Cat Ex) Project Cost:

Approved
Forecast
Actual
$ 41.06 M
$ 41.06 M
$ 2.44 M
Project Schedule:

Approved
Forecast
09/18/20
09/18/20
12/01/27
12/01/27
Project Percent Complete: 7.1%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 05/30/25 05/30/25 01/30/26 08/31/27
Progress and Status:

The review
of the 65% design package has been completed,
and the project team is progressing with the 95% design deliverable. A phased approach has been initiated, with an advance work package being developed under a Job Order
Contract to complete the powerhouse tailrace penetration ahead of the main contract. Utility investigations are planned for next quarter.

Issues and Challenges:

None at this time.

Tie in Location of Bypass to Powerhouse Tailrace

14 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014086 - Moccasin Powerhouse and GSU Rehabilitation
Project Description: The project
is broken down into three components: 1) Generator Rehabilitation replace the entire generator and associated equipment, including new stator cores and coils, rotor poles, relays, and rotor rim; 2) GSU Replacement replace two of the three existing generator step-up transformers (GSUs), new foundations and oil containment, and relay upgrades; and 3) Power Plant Systems Upgrades replace the 480 V switchgear, 13.8 kV switchgear, motor control centers, main control boards, protective relays, cooling water piping, and improving oil containment systems.

Program: Power Infrastructure Project Status: Multi-Phases Environmental Status: Active (Cat Ex) Project Cost:

Approved
Forecast
Actual
$ 100.56 M
$ 116.18 M
$ 49.65 M
Project Schedule:

Approved
Forecast
09/18/20
09/18/20
12/31/28
12/31/28
Project Percent Complete: 55.3%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 09/28/20 A 11/20/20 A 06/07/21 A 06/26/23 A
B 09/28/20 A 10/30/20 A 08/15/22 A 06/17/25
C 07/11/25 07/14/25 03/14/26 06/30/28
Progress and Status:

For Subproject A
- Moccasin Powerhouse Generator Step-Up
(GSU’s) Transformers, the project team continued to close out contract HH-1003R. For Subproject B - Moccasin
Powerhouse Generators Rewind, contract DB-121R2, is on
schedule. The contractor installed the new stator and rotor in Unit M1; and is progressing with the installation of the new fire suppression system. For Subproject C - Moccasin
Powerhouse Systems Upgrade, the 65% submittal has been
reviewed in depth with stakeholders and comments are being incorporated into the 95% design.

Issues and Challenges:

The variance between the approved budget and forecasted cost is due to increased cost contingency of the DB-121R2 contract as well as forecasted cost increases in Subproject C – Systems Upgrade, where higher costs are anticipated from scope refinement, higher construction and procurement
costs, and additional construction management and support resource requirements. The cost estimate for Subproject C will be refined at 95% design to reflect any new or updated information. Due to in depth review of 65% documents, the review period and 95% development has been extended.

Advertisement date has been postponed by 5 months from
the approved date to account for the additional effort. The schedule is still aligned with outage requirements and there is no impact to the project final completion.

Generator M1 Rotor Lift for Installation
15 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014089 - Transmission Lines Clearance Mitigation
Project Description: This project will
provide funding to implement mitigation measures to resolve clearance discrepancies. Mitigation options include but are not limited to new towers/tubular poles, new intervening poles, tower raises, ground lowering, and other structural improvements to the lattice towers.

Program: Power Infrastructure Project Status: Bid and Award Environmental Status: Active (MND) Project Cost:

Approved
Forecast
Actual
$ 83.68 M
$ 83.68 M
$ 15.40 M
Project Schedule:

Approved
Forecast
07/01/17
07/01/17
06/30/29
06/30/29
Project Percent Complete: 23.6%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 06/02/26 03/14/25 10/08/26 12/29/28
Transmission Lines 5 & 6 in Moccasin
Progress and Status:

The project team finalized the Alternative Analysis Report.

Hetch Hetchy Water and Power approved the Design Criteria Report and Conceptual Engineering Report, now awaiting
signatures. The draft Project Description remains under review with the Environmental Management Group. Work
continues on preparing contract documents for the
progressive design-build contract.

Issues and Challenges:

None at this time.
16 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014087 - Warnerville Substation Rehabilitation Project Project Description: The additional
funding request is to cover the remaining work for Warnerville Substation Rehabilitation Project. Under Design Build Contract #DB-127R, installation of some 230 kV equipment was deleted from the contract but procured, including circuit breakers, switches, insulators, and current voltage transformers. Remaining work includes the replacement of four oil circuit breakers, bushings, surge arrestors, disconnect switches, current voltage transformer, insulators, relay protection, and other ancillary equipment.

Program: Power Infrastructure Project Status: Construction Environmental Status: Active (Cat Ex) Project Cost:

Approved
Forecast
Actual
$ 37.41 M
$ 38.33 M
$ 26.77 M
Project Schedule:

Approved
Forecast
09/01/15
09/01/15
11/25/26
01/03/29
Project Percent Complete: 78.9%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 03/31/16 A 01/10/17 A 11/26/18 A 12/20/24 A
B 01/31/25 02/10/25 09/10/25 07/01/28

This project is divided into 2 subprojects. For Subproject A Warnerville Substation Rehabilitation Phase 1 –
DB-127R, the project team continued to close out the
contract. For Subproject B Warnerville Substation
Rehabilitation Phase 2, the project team received Pacific Gas and Electric Company’s (PG&E) design review
comments, including for the additional work at the South Yard and is preparing contract documents for advertisement to bid in the next quarter. The proposed South Yard
work is essential for better integration with PG&E’s grid system, improving grid reliability, and increasing transfer capacity for higher demand in the future.

During this period, the construction schedule and
cost estimate were revised to reflect the additional work requested by PG&E for the South Yard. The additional work resulted in a forecasted cost increase of $0.9M and a
schedule duration increase of an additional 2.1 years.

The higher cost and longer schedule are primarily driven by longer-than-expected high voltage equipment lead
times and rising labor costs. During 65% design review, the team learned that key equipment (e.g., switches,
capacitor voltage transformers) now has 12-14 month
lead times, up from 4-6 months. Additionally, broader
market conditions, including post-pandemic supply
chain delays and labor shortages, have increased costs
across all work scopes.

Existing Warnerville Substation Rehabilitation, 230kV Switch to be Replaced
Progress and Status:

Issues and Challenges:
17 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10039568 - Moccasin Switchyard Rehabilitation
Project Description: Replace
115 kV disconnect switches, replace 115 kV bus configuration, replace 230 kV disconnect switches, change 230 kV bus configuration, replace 115 kV circuit breakers, add surge arresters, perform a fault study, perform a grounding study, improve switchyard grading, and replace fencing.

Program: Power Infrastructure Project Status: Planning Environmental Status: Not Initiated (TBD)
Project Cost:

Approved
Forecast
Actual
$ 19.71 M
$ 19.71 M
$ 0.37 M
Project Schedule:

Approved
Forecast
11/01/22
11/01/22
01/31/30
01/31/30
Project Percent Complete: 7.2%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 09/21/27 01/20/28 05/21/28 07/31/29
Progress and Status:

The consultant
team submitted a draft Needs Assessment
Report in November, which is currently under review.

Issues and Challenges:

None at this time.

Existing Moccasin Switchyard

18 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014088 - Moccasin Penstock Rehabilitation
Project Description: In order to
meet the established level of service, mitigate potential risks, and avoid potential consequences of failure, SFPUC is considering replacing the penstocks so that the life of the asset will be extended for a minimum 75 years. Based on a preliminary study, a combination of a drop shaft, a tunnel and above grade pipes appears to be a favorable alternative. SFPUC will continue the study before determining the most appropriate alternative solution. For capital planning purposes, SFPUC assumes the alternative will include: 1) a drop shaft; 2) a new tunnel penstock; and 3) two above-grade penstocks.

Program: Joint Infrastructure Project Status: Planning Environmental Status: Not Initiated (EIR)
Project Cost:

Approved
Forecast
Actual
$ 331.17 M
$ 331.17 M
$ 8.57 M
Project Schedule:

Approved
Forecast
02/03/14
02/03/14
12/08/34
12/08/34
Project Percent Complete: 3.2%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 09/04/29 09/06/30 05/07/31 05/07/34
Moccasin Penstock System along the Steep Section
Progress and Status:
19 The project team completed the second round of
evaluation exercises. The draft Alternative Analysis Report has been updated with the results; the alternatives in the City-owned property alignment are top ranked. The
information is under review by SFPUC management.

Issues and Challenges:

None at this time.

HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10039680 - Moccasin Engineering and Records Building
Project Description: HHWP
Project operations and administration is located in Moccasin, California, with facilities including buildings, office trailers, warehouses, shops, laboratories, and sheds. Many existing facilities are deteriorating, do not meet current building codes, and are incurring increased maintenance costs. HHWP needs to invest in new facilities to meet all applicable codes and standards; reduce maintenance costs; increase employee interconnectivity and productivity; properly store all staff, materials, records, and equipment; and meet energy-efficiency standards. HHWP prepared a report titled "Moccasin Facilities Upgrade Project Alternatives Analysis and Evaluation Report Update". The report identified long- term needs for creating adequate office space for current staff in Moccasin. In addition, the report evaluated the needs for new, dedicated materials storage space, new records and archives space with offices, new space for servers, and parking space for staff. The Moccasin Engineering and Records Building project will address the need for permanent office space by constructing a new two-story building. Hetch Hetchy and Infrastructure staff are currently located in temporary trailers that have exceeded their useful life. The new building will provide office space for Hetch Hetchy Engineering, Records, Energy Services, Infrastructure, and ITS staff. The scope also includes a secure server room, parking lot, and archive/records storage. The budget and schedule for the project will be modified to provide permanent office space for both Hetch Hetchy and Infrastructure staff and to address escalation since the completion of the 2020 Alternatives Analysis Report estimate.

Program: Joint Infrastructure Project Status: Design Environmental Status: Not Initiated (Cat Ex)
Project Cost:

Approved
Forecast
Actual
$ 88.73 M
$ 88.73 M
$ 1.83 M
Project Schedule:

Approved
Forecast
12/14/22
12/14/22
05/31/29
05/31/29
Project Percent Complete: 3.1%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 12/31/25 07/01/26 02/01/27 11/30/28
Progress and Status:

The schematic
design was completed. The design team has
initiated work on the Design Development Package with the target completion in Q4FY25.

Issues and Challenges:

None at this time.

Concept Design for Moccasin Engineering and Archive Building

20 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10041727 - Moccasin Warehouse Building
Project Description: The
Moccasin Old Powerhouse was constructed in 1926 and abandoned in the 1960s. The building has multiple structural and nonstructural issues, including cracks, spalling of structural concrete, water intrusion, broken windows, settlement, hazardous materials, and seismic deficiencies. The building is currently used for storage of large equipment and critical spares for the Hetch Hetchy Water and Power system. As a result of the multiple issues, it was determined to demolish the building. A new warehouse is therefore necessary for the storage of the large equipment and critical spares for the Hetch Hetchy Water and Power system that was previously stored in the Moccasin Old Powerhouse.

This project includes a construction of a new 9,000-square-foot warehouse within the Moccasin campus to store large equipment and critical spare components for the Hetch Hetchy Water and Power System. The building will include office space for warehouse staff including records retention for warehouse and materials documentation.

Program: Joint Infrastructure Project Status: Planning Environmental Status: Active (TBD) Project Cost:

Approved
Forecast
Actual
$ 26.29 M
$ 26.29 M
$ 0.00 M
Project Schedule:

Approved
Forecast
01/01/25
10/15/24
04/01/31
04/01/31
Project Percent Complete: 0.0%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 03/01/27 08/01/28 04/02/29 10/01/30
Progress and Status:

The FY24-25
budgeted appropriation funding was released
and put into the project account. The planning phase of the project has begun.

Issues and Challenges:

None at this time.

Moccasin Warehouse � Existing Building

21 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10032903 - O'Shaughnessy Dam Outlet Works Phase 1
Project Description: O'Shaughnessy
Dam was completed in 1923 and raised in 1938. A condition assessment of the dam outlet works revealed the need for improvements to the existing outlet works, including gates and valves (1923 construction), to ensure safe and reliable operation. Based on engineering studies and prioritization of asset condition, needs, and risks, improvements to the existing outlet works will be implemented in two phases. Funding for this project will include work under Phase 1. Phase 2 of the O'Shaughnessy Dam Outlet Improvement Project begins in 2025. Work under Phase 1 will include: (1) replacement of two existing instream flow release valves; (2) improvements to access and drainage in the dam gallery and stairs; (3) installation of new bulkheads for the outlet intake; and (4) a planning phase and scoping for the slide gates and drum gates improvements.

Program: Joint Infrastructure Project Status: Multi-Phases Environmental Status: Completed (Cat Ex)
Project Cost:

Approved
Forecast
Actual
$ 43.73 M
$ 43.73 M
$ 25.82 M
Project Schedule:

Approved
Forecast
02/01/18
02/01/18
12/31/25
06/30/26
Project Percent Complete: 61.1%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 12/02/22 A 01/13/23 A 05/24/24 A 07/01/25
B 12/02/22 A 05/03/24 A 11/12/24 A 11/06/25
C 12/02/22 A 03/13/23 A 08/28/23 A 05/24/25
11/25/22 A
Progress and Status:

Subproject A
(Bulkheads): The new dam inlet isolation
bulkheads were delivered, installed, and successfully tested in Slots 1 and 2. Subproject B (Drainage & Miscellaneous Dam Improvements): Contract No. HH-1015 has commenced
following the issuance of the Notice-to-Proceed. The
contractor started working on submittals and construction schedule. For Subproject C (Instream Flow Release (IFR) Valve Replacement, HH-1011), the axial control valves,
piping, and appurtenances were installed and commissioned, and the IFR system is now operational. The contractor is addressing remaining punchlist items. Subproject D (Slide Gates): Comments on the Needs Assessment Report are
being addressed. Subproject E (Drum Gates): Comments on the combined Needs Assessment and Alternative Analysis
Report are being incorporated.

Issues and Challenges:

The variance between the approved and forecast project
finish date is due to longer than expected duration to
coordinate the proposed construction water treatment and discharge requirements for the Drainage & Miscellaneous Improvement (Subproject B) contract. The substantial
completion date for Subproject C (Instream Flow Release Valve Replacement) is forecasted to be delayed due to the longer than expected procurement and delivery time of the gantry crane. The team is evaluating the impact of the delay.

Subproject A New Bulkheads for Face of O'Shaughnessy Dam - Slot 1/2 Bulkhead Being Installed & Tested

22 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10037351 - Moccasin Dam & Reservoir Long Term Improvement Project Description: A heavy
storm event in 2018 caused significant damage to the auxiliary spillway, upstream trash rack and diversion, and downstream area. Subsequent engineering studies concluded that improvements are needed to increase the spillway capacity to safely pass the updated design flood without overtopping the existing embankment dam.

This project is needed for dam safety. This project will construct a new concrete spillway with adequate flow capacity along the alignment of the existing auxiliary spillway and additional flood protection to the Moccasin project facilities.

Program: Joint Infrastructure Project Status: Planning Environmental Status: Active (TBD) Project Cost:

Approved
Forecast
Actual
$ 142.19 M
$ 164.73 M
$ 5.12 M
Project Schedule:

Approved
Forecast
05/03/21
05/03/21
12/31/34
12/31/34
Project Percent Complete: 5.2%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 06/29/29 07/02/29 03/30/30 12/31/33
Progress and Status:

The Conceptual Engineering Report has been updated based on feedback from the SFPUC Technical Steering Committee (TSC) and is currently being routed for signatures. This quarter, the consultant also completed a draft Basis of Design Report and a Draft Final Design Hydraulic Analysis.

Geotechnical data review and analysis are ongoing.

As reported last quarter, the variance between the
forecast cost and the approved budget was primarily due to the recent escalation of concrete and steel costs which, in turn, increased the construction cost estimate at the
Conceptual Engineering Report phase.

Physical Model of the Moccasin Dam Spillway Conceptual Design 23 Issues and Challenges:

HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014115 - Cherry Dam Spillway - Short Term Improvements Project Description: Cherry Dam Spillway
is a 334 foot-wide ogee-type concrete weir that discharges into an unlined adjacent channel. The spillway capacity is designed for 52,000 cfs. A spill of 1,500 cfs in 2010 resulted in significant erosion damage to the unlined spill channel, large-scale erosion along the western segment of Cherry Dam, and flooding of Cherry Power Tunnel Adit and a campground downstream. Engineering studies showed that remedial measures and erosion protection for the spill channel are needed to ensure that spill flows from Cherry Valley Dam spillway can be contained without erosion damage to the existing embankment dam and downstream area. Studies also found that long-term improvement to the spillway is needed to increase the hydraulic capacity of the spillway to safely pass the design flood. This project is a short-term interim solution until the long-term spillway improvements are implemented. This project will reestablish containment for the breached spill channel section from the 2010 spill and install armoring to protect the upper spill channel section against erosion from spillway releases of up to 2,000 cubic feet per second.

Program: Joint Infrastructure Project Status: Design Environmental Status: Active (MND) Project Cost:

Approved
Forecast
Actual
$ 14.89 M
$ 14.89 M
$ 2.63 M
Project Schedule:

Approved
Forecast
03/01/21
03/01/21
06/30/27
06/30/27
Project Percent Complete: 19.5%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 12/31/25 07/14/25 02/28/26 12/31/26
Progress and Status:

The consultant delivered the 35% design package, which is under review by the project team. The draft 65% design
package is scheduled for delivery next quarter.

Issues and Challenges:

None at this time.

Cherry Valley Dam Spillway 2,000 Cubic Feet per Second (CFS) Flow Model
24 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10030759 - Eleanor Dam Rehabilitation
Project Description: Mitigation
alternatives will include improvements to increase spill capacity to safely pass the design flood, installation of a liner on the upstream face of the dam, concrete repairs, valve replacement, and installation of concrete lining and riprap for foundation armoring, and replacement of the existing bridge.

Program: Joint Infrastructure Project Status: Multi-Phases Environmental Status: Not Initiated (TBD)
Project Cost:

Approved
Forecast
Actual
$ 113.87 M
$ 113.87 M
$ 0.77 M
Project Schedule:

Approved
Forecast
06/01/20
06/01/20
12/31/38
12/31/38
Project Percent Complete: 1.8%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 06/30/25 07/01/25 03/01/26 12/31/26
B 12/31/32 01/01/33 10/01/33 12/31/37
Progress and Status:

This project
is divided into 2 subprojects, (A) the Eleanor
Dam - Interim Bridge Repairs; and (B) the Eleanor Dam and Bridge Long-Term Rehabilitation. For subproject A, the
project team is coordinating a ‘mock-up’ test for proposed bridge overlay materials, which is scheduled for Spring 2025.

The testing of the proposed bridge overlay materials is required to ensure that the selected product will meet the project objectives. For subproject B, the project team
received the draft Needs Assessment Review Memo and
Erodibility Analysis Report from the consultant.

Issues and Challenges:

None at this time.

Lake Eleanor Stream Power Visual

25 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10039119 - Early Intake Dam - Long Term
Project Description: Remove
the existing deteriorated dam and construct a new concrete diversion structure and conveyance system within the existing Raker Act boundary to divert flows from Cherry Creek and Tuolumne River upstream of Kirkwood Powerhouse into Mountain Tunnel for SFPUC customers during emergencies.

Program: Joint Infrastructure Project Status: Planning Environmental Status: Not Initiated (TBD)
Project Cost:

Approved
Forecast
Actual
$ 100.07 M
$ 100.07 M
$ 0.71 M
Project Schedule:

Approved
Forecast
07/01/23
07/01/23
12/31/35
12/31/35
Project Percent Complete: 2.2%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 06/28/30 07/01/30 04/01/31 12/31/34
Progress and Status:

Review of
the biological and topographic surveys were
completed. The consultant issued a draft Alternatives
Analysis Report (without scoring) this quarter, which is currently under internal review.

Issues and Challenges:

None at this time.

Early Intake Dam Spillway at Right Abutment

26 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) 10014114 - Mountain Tunnel Improvement Project
Project Description: Constructed between
1917 and 1925, Mountain Tunnel (MT) is a critical, nonredundant link in the Hetch Hetchy Regional Water System, conveying SFPUC water supply from Kirkwood Powerhouse to Priest Reservoir. Due to the tunnel's 90 years of operation, deferred maintenance, and construction deficiencies from the early 1900s, sections of the tunnel have deteriorated, some more extensively than others. The Mountain Tunnel Inspection and Repairs Project provided a tunnel inspection in 2017 to update the Condition Assessment conducted in 2008. Short-term repairs were also made in 2017 and 2018 to reduce the risk of failures in the concrete lining prior to implementation of the long-term project.

The Mountain Tunnel Improvements (Rehabilitation)Project was selected for the design and construction of the preferred engineering alternative that will keep this vital component of the Hetch Hetchy Regional Water System in reliable service for years to come. The budget and schedule are based on the Mountain Tunnel Improvements Project construction phase, which is anticipated to take place between 2021 and 2027. This is the water funded portion of the Mountain Tunnel projects.

For the Mountain Tunnel Improvements Project, the water portion will rehabilitate the inside of the tunnel and extend the siphon at South Fork, along with related safety improvements to the roadways that access the Mountain Tunnel.

Program: Joint Infrastructure Project Status: Construction Environmental Status: Completed Project Cost:

Approved
Forecast
Actual
$ 268.67 M
$ 268.67 M
$ 154.80 M
Project Schedule:

Approved
Forecast
10/03/11
10/03/11
06/03/27
06/03/27
Project Percent Complete: 64.7%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast
A 01/14/20 A 11/13/19 A 01/29/21 A 12/03/26
B 12/11/23 A 09/23/24 A 09/03/25
Progress and Status:

Subproject A (HH-1000R)
Mountain Tunnel Improvement
Contract: The contractor was issued a Non-Conformance
Notice (NCN) for the Flow Control Building foundations which will require demolition of the faulty walls and foundation. The large cut walls were completed on the Adit 5/6 and 8/9
roadways. Contractor set up for the upcoming shutdown
which included commissioning the construction water
treatment plant, installing the grout plants for in tunnel contact grouting, staging shotcrete in Adit 8/9 and preparing
ventilation fans. Shutdown No. 4 and in tunnel work began on December 16, 2024. Negotiations for removal of work scope concluded with Commission approval to modify the contract anticipated next quarter. Staff is working on obtaining approval for an alternative delivery method to complete the remaining work. Subproject B (HH-1013) Moccasin Water
System Filtration Plant: Construction is progressing, and a design change is required for one of the building support walls due to the bedrock being lower than anticipated.

Issues and Challenges:

None at this time.

Grout Plant at Priest Adit for Contact Grouting during Outage No. 4 N/A
27 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10037077 - Moccasin Old Powerhouse Hazard Mitigation
Project Description: Design
and install mitigation measures to prevent the building from collapsing and to prevent hazardous materials (such as lead-based paint and asbestos) from contaminating Moccasin Reservoir.

Program: Joint Infrastructure Project Status: Planning Environmental Status: Not Initiated (EIR)
Project Cost:

Approved
Forecast
Actual
$ 13.47 M
$ 13.47 M
$ 0.89 M
Project Schedule:

Approved
Forecast
01/01/21
01/01/21
07/01/32
07/01/32
Project Percent Complete: 9.2%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 12/31/28 01/01/30 08/01/30 08/01/31
Progress and Status:

The project
team continues to work on the Conceptual
Engineering Report.

Issues and Challenges:

None at this time.

Existing Moccasin Old Powerhouse

28 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10014108 - Canyon Tunnel - Hetchy Adit Rehab & OSH Bridge Project Description: The
project is to install a new reinforced concrete plug downstream of the existing plug in Hetchy Adit and rehabilitate O'Shaughnessy Adit Access Bridge including sub-structure retrofit and super structure replacement.

Program: Joint Infrastructure Project Status: Design Environmental Status: Active (MND) Project Cost:

Approved
Forecast
Actual
$ 30.14 M
$ 30.14 M
$ 2.33 M
Project Schedule:

Approved
Forecast
02/03/14
02/03/14
12/31/30
12/31/30
Project Percent Complete: 17.3%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 08/31/26 09/01/26 05/01/27 05/01/30
Progress and Status:

The combined
95% design package for the O’Shaughnessy
Adit access bridge and the Canyon Tunnel Hetchy Adit
rehabilitation was developed this quarter. Environmental field surveys have been completed, and consultation with
regulatory agencies resulted in a California Environmental Quality Act (CEQA) determination of a Mitigated Negative Declaration (MND).

Issues and Challenges:

None at this time.

Canyon Tunnel - Hetchy Adit Bulkhead

29 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

10014110 - Moccasin Wastewater Treatment Plant
Project Description: This
project will replace the existing plant with a package two-train sequencing batch reactor (SBR) plant with grit removal and screening facilities, upgraded electrical and flow monitoring systems, flow equalization, SCADA instrumentation and automation features, and related site improvements.

Program: Joint Infrastructure Project Status: Construction Environmental Status: Completed (Cat Ex)
Project Cost:

Approved
Forecast
Actual
$ 15.38 M
$ 15.38 M
$ 3.06 M
Project Schedule:

Approved
Forecast
01/03/22
01/03/22
02/20/28
02/20/28
Project Percent Complete: 22.7%
Key Milestones Environmental
Approval
Bid Advertisement Construction NTP Construction Final
Completion
Current Forecast 02/22/23 A 10/12/23 A 06/03/24 A 12/29/26 Progress and Status:

The contractor
continued potholing to verify existing
underground utilities. The project team is addressing
Requests for Information (RFIs) and submittals. A change order was approved to construct a temporary path from the laboratory to the plant to maintain access during construction.

Issues and Challenges:

None at this time.

Drilling for Temporary Shoring Adjacent to the Existing Wastewater Treatment Plant

30 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

8. ON-GOING CONSTRUCTION*
Construction
Schedule Budget Variance
(Approved - Forecast) Percent
Contract
NTP Date
Approved
Construction
Final
Completion
Current
Forecasted
Construction
Final
Completion**
Approved
Contract
Cost
Current
Forecasted
Cost**
Schedule
(Cal Days) Cost
Complete
Water Infrastructure
10035575 - SJPL Valve & Safe Entry
Improvement - (Contract A, HH-1005)
05/16/22 02/01/25 03/14/25 $15,462,515 $15,462,515 (41) $0 76.9% 10035575 - SJPL Valve & Safe Entry
Improvement - (Contract B, HH-1006)
11/07/22 09/11/24 09/11/24 $11,465,716 $11,465,716 0 $0 99.7% 10035575 - SJPL Valve & Safe Entry
Improvement - (Contract C, HH-1012)
05/13/24 07/07/25 07/07/25 $5,627,764 $5,651,496 0 ($23,732) 3.7% 10035575 - SJPL Valve & Safe Entry
Improvement - (Contract E, HH-1009)
02/26/24 05/22/25 05/22/25 $11,160,222 $11,160,222 0 $0 49.8% Power Infrastructure
10014086 - Moccasin Powerhouse
Generator Rehab - (Contract B,
DB-121R2)
08/15/22 06/17/25 06/17/25 $29,479,709 $29,479,709 0 $0 82.0% 10014087 - Warnerville Substation -
(DB-127R)
11/26/18 03/31/24 12/20/24 $14,591,450 $14,591,450 (264) $0 100.0% Joint Infrastructure
10032903 - O'Shaughnessy Dam
Outlet Works Phase 1 - Instream Flow
Release (Contract C, HH-1011)
08/28/23 05/24/25 05/24/25 $6,084,722 $6,190,286 0 ($105,564) 84.7% 10032903 - O'Shaughnessy Dam
Outlet Works Phase 1 - Bulkheads
(Contract A, DB-135)
05/24/24 07/01/25 07/01/25 $6,805,604 $7,125,604 0 ($320,000) 65.5% 10032903 - O'Shaughnessy Dam
Outlet Works Phase 1 - Drainage &
Misc. Dam Improvements (Contract B,
HH-1015)
11/12/24 11/06/25 11/06/25 $5,285,955 $5,285,955 0 $0 0.0% Note: * This table reflects Active Construction Contracts with an original contract amount greater than $1M. ** The Forecasted Cost includes all approved, pending, and potential change orders; and Forecast Final Completion includes all approved, pending, and potential change orders, and trends. 31 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24) Construction
Schedule Budget Variance
(Approved - Forecast) Percent
Contract
NTP Date
Approved
Construction
Final
Completion
Current
Forecasted
Construction
Final
Completion**
Approved
Contract
Cost
Current
Forecasted
Cost**
Schedule
(Cal Days) Cost
Complete
10014114 - Mountain Tunnel
Improvement - (HH-1000R)
01/29/21 12/03/26 12/03/26 $147,103,296 $148,668,296 0 ($1,565,000) 60.4% 10014110 - Moccasin Wastewater
Treatment Plant - (HH-1010)
06/03/24 12/29/26 12/29/26 $7,507,640 $7,512,377 0 ($4,737) 6.1%

Approved Current Variance
Contract Cost Forecast Cost Cost Percent
Program Total for On-
Going Construction $260,574,593 $262,593,627 ($2,019,034) (0.8%) Note: * This table reflects Active Construction Contracts with an original contract amount greater than $1M. ** The Forecasted Cost includes all approved, pending, and potential change orders; and Forecast Final Completion includes all approved, pending, and potential change orders, and trends. 32 HCIP Quarterly Report Q2-FY2024-2025 (10/01/24 - 12/31/24)

9. PROJECTS IN CLOSEOUT
Project Title
Current
Approved
Construction
Phase
Completion
Actual
Construction
Phase
Completion
Current
Approved
Construction
Phase Budget
Construction
Phase
Expenditures
To Date
Power Infrastructure
Transmission Lines
10035721 - Transmission Lines 7/8 Upgrades 06/05/24 06/05/24 $27,146,308 $24,197,640 TOTAL $27,146,308 $24,197,640

33 HClP Quarterly Report Q2-FY2024-2025 (10/01/24 – 12/31/24)

10. COMPLETED PROJECTS

There are no completed projects.

34 APPENDICES

A PROJECT DESCRIPTIONS

B APPROVED PROJECT LEVEL BUDGETS/SCHEDULES

C LIST OF ACRONYMS
APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24) Q2-FY2024-25 (10/01/24 – 12/31/24)
This page is intentiona
lly left blank.

APPENDICES
APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
APPENDIX A. PROJECT DESCRIPTIONS

WATER INFRASTRUCTURE
Water Conveyance (Water)
10035575 SJPL Valve and Safe Entry Improvement
San Joaquin Pipeline (SJPL) Nos. 1, 2, and 3 consist of three parallel transmission pipelines (completed in 1932, 1953, and 1968, respectively) that cross the San Joaquin Valley from the east of Foothill Tunnel at Oakdale Portal to the west of Coast Range Tunnel at Tesla Portal, a distance of approximately 48 miles. A fourth partial pipeline (SJPL 4 completed in 2012) consists of a 6.4-mile segment of pipe downstream of Oakdale and another 11-mile segment upstream of Tesla Portal. SJPLs deliver Tuolumne River water to the San Francisco Bay Area. They have been in service ranging from 11 to 91 years. SFPUC staff members and contractors need to enter the pipelines regularly to perform condition assessment, maintenance, and repair work. A recent hydraulic study shows that several of the existing valves in the SJPLs may be under- rated for the potential surge pressures that could be triggered from an unplanned closure of the valves at the downstream Tesla Ultraviolet Treatment Facility. For safety reasons, the SFPUC initiated this capital project to increase the pressure rating of the valves, provide safe pipeline isolations for personnel entry into the pipelines, and allow shutdown of any section of the SJPLs without a complete system shutdown.

SJPL Valve Remote Control and Monitoring
Design, procure, and construct new SJPL remote supervisory controls that would enable remote operation from Moccasin to remotely operate valve actuators. The project includes data telemetry improvements, Remote Terminal Unit (RTU) installation/replacement, trans-valley communication system upgrades, power system upgrades, security improvements, and access improvements.

Water Infrastructure Project Development
10014072 WATER ONLY/PROJ DEV
The Project Development (PD) Account captures Program-level expenditures. The project provides programmatic support for Water funded capital projects. The following charges are allocated to the PD Account: 1) task orders for overall program management and project prioritization tasks, where the costs should be distributed over all CIP Projects; 2) infrastructure and Hetch Hetchy staff performing program- level tasks, including capital plan development, budget management (including fund management and cost reallocations), and unifier and quarterly report generation tasks, where the costs should be distributed over all CIP Projects; 3) portal support for the existing SharePoint Portal (including document management and project dashboard reporting); 4) work outreach program; and 5) City Attorney charges for contract development.

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APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
APPENDIX A. PROJECT DESCRIPTIONS

POWER INFRASTRUCTURE
Powerhouse
10036809 Moccasin Powerhouse Bypass Upgrades
Provide a reliable hydraulic bypass and energy dissipation system, conveying water around the turbines to the Moccasin Powerhouse Tailrace. Upgrade/replace high-pressure energy-dissipating valves, control systems, and associated structures to absorb 1,147 feet of pressure head and 430 cubic feet per second flow without damage.
10014086 Moccasin Powerhouse and GSU Rehabilitation
The project is broken down into three components: 1) Generator Rehabilitation – replace the entire generator and associated equipment, including new stator cores and coils, rotor poles, relays, and rotor rim; 2) GSU Replacement – replace two of the three existing generator step-up transformers (GSUs), new foundations and oil containment, and relay upgrades; and 3) Power Plant Systems Upgrades – replace the 480 V switchgear, 13.8 kV switchgear, motor control centers, main control boards, protective relays, cooling water piping, and improving oil containment systems.

Transmission Lines
10014089 Transmission Lines Clearance Mitigation
This project will provide funding to implement mitigation measures to resolve clearance discrepancies.

Mitigation options include but are not limited to new towers/tubular poles, new intervening poles, tower raises, ground lowering, and other structural improvements to the lattice towers. 10035721 Transmission Lines 7/8 Upgrades
This project develops the scope of work, design, and contract documents necessary to bid, award, and manage the reconductoring contract. Reconductoring will include replacement of the existing 115 kV conductors on Lines 7/8 from Warnerville to Standiford substations, resulting in increased capacity and resolving clearance detections.

Switchyard & Substations (Power)
10014087 Warnerville Substation Rehabilitation
The additional funding request is to cover the remaining work for Warnerville Substation Rehabilitation Project. Under Design Build Contract #DB-127R, installation of some 230 kV equipment was deleted from the contract but procured, including circuit breakers, switches, insulators, and current voltage transformers. Remaining work includes the replacement of four oil circuit breakers, bushings, surge arrestors, disconnect switches, current voltage transformer, insulators, relay protection, and other ancillary equipment.
10039568 Moccasin Switchyard Rehabilitation
Replace 115 kV disconnect switches, replace 115 kV bus configuration, replace 230 kV disconnect switches, change 230 kV bus configuration, replace 115 kV circuit breakers, add surge arresters, perform a fault study, perform a grounding study, improve switchyard grading, and replace fencing.

Dams & Reservoirs (Power)
10014079 Cherry-Eleanor Pumps
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APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
Replace and upgrade pumps in Cherry Pump Station with units that work with current operating strategies.

The scope of work includes: 1) replacement of pumps, transformer, and pump motor starters; 2) installation of Programmable Logic controller (PLC), SCADA system, and fiber optics; and 3) improvement of the existing motor control center (MCC) building.

Power Infrastructure Project Development
10014092 POWER ONLY/PROJ DEVELP
The Project Development (PD) Account captures program-level expenditures. The project provides programmatic support for Power funded capital projects. The following charges are allocated to the PD Account: 1) task orders for overall program management and project prioritization tasks, where the costs should be distributed over all CIP Projects; 2) infrastructure and Hetch Hetchy staff performing program- level tasks, including capital plan development, budget management (including fund management and cost reallocations), and unifier and quarterly report generation tasks, where the costs should be distributed over all CIP Projects; 3) portal support for the existing SharePoint Portal (including document management and project dashboard reporting); 4) work outreach program; and 5) City Attorney charges for contract development.

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APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
APPENDIX A. PROJECT DESCRIPTIONS

JOINT INFRASTRUCTURE
Water Conveyance (Joint)
10014088 Moccasin Penstock Rehabilitation
In order to meet the established level of service, mitigate potential risks, and avoid potential consequences of failure, SFPUC is considering replacing the penstocks so that the life of the asset will be extended for another 75 to 100 years. Based on a preliminary study, a combination of a drop shaft, a tunnel and above grade pipes appears to be a favorable alternative. SFPUC will continue the study before determining the most appropriate alternative solution. For capital planning purposes, SFPUC assumes the alternative will include the following major elements: • A drop shaft of about 850 feet deep, • A new tunnel penstock of about 3,100 feet, and • A two 72 in. above-grade penstocks with a total length of 3,000 feet Buildings (Joint)
10039680 Moccasin Engineering and Records Building
HHWP Project operations and administration is located in Moccasin, California, with facilities including buildings, office trailers, warehouses, shops, laboratories, and sheds. Many existing facilities are deteriorating, do not meet current building codes, and are incurring increased maintenance costs. HHWP needs to invest in new facilities to meet all applicable codes and standards; reduce maintenance costs; increase employee interconnectivity and productivity; properly store all staff, materials, records, and equipment; and meet energy-efficiency standards. HHWP prepared a report titled "Moccasin Facilities Upgrade Project – Alternatives Analysis and Evaluation Report Update". The report identified long-term needs for creating adequate office space for current staff in Moccasin. In addition, the report evaluated the needs for new, dedicated materials storage space, new records and archives space with offices, new space for servers, and parking space for staff. The Moccasin Engineering and Records Building project will address the need for permanent office space by constructing a new two-story building. Hetch Hetchy and Infrastructure staff are currently located in temporary trailers that have exceeded their useful life. The new building will provide office space for Hetch Hetchy Engineering, Records, Energy Services, Infrastructure, and ITS staff. The scope also includes a secure server room, parking lot, and archive/records storage. The budget and schedule for the project will be modified to provide permanent office space for both Hetch Hetchy and Infrastructure staff and to address escalation since the completion of the 2020 Alternatives Analysis Report estimate.
10041727 Moccasin Warehouse Building
The Moccasin Old Powerhouse was constructed in 1926 and abandoned in the 1960s. The building has multiple structural and nonstructural issues, including cracks, spalling of structural concrete, water intrusion, broken windows, settlement, hazardous materials, and seismic deficiencies. The building is currently used for storage of large equipment and critical spares for the Hetch Hetchy Water and Power system. As a result of the multiple issues, it was determined to demolish the building. A new warehouse is therefore necessary for the storage of the large equipment and critical spares for the Hetch Hetchy Water and Power system that was previously stored in the Moccasin Old Powerhouse. This project includes a construction of a new 9,000-square-foot warehouse within the Moccasin campus to store large equipment and critical spare components for the Hetch Hetchy Water and Power System. The building will include office space for warehouse staff including records retention for warehouse and materials documentation.

Dams & Reservoirs (Joint)
10032903
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APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
O'Shaughnessy Dam Outlet Works Phase 1
O'Shaughnessy Dam was completed in 1923 and raised in 1938. A condition assessment of the dam outlet works revealed the need for improvements to the existing outlet works, including gates and valves (1923 construction), to ensure safe and reliable operation. Based on engineering studies and prioritization of asset condition, needs, and risks, improvements to the existing outlet works will be implemented in two phases. Funding for this project will include work under Phase 1. Phase 2 of the O'Shaughnessy Dam Outlet Improvement Project begins in 2025. Work under Phase 1 will include: (1) replacement of two existing instream flow release valves; (2) improvements to access and drainage in the dam gallery and stairs; (3) installation of new bulkheads for the outlet intake; and (4) a planning phase and scoping for the slide gates and drum gates improvements.
10037351 Moccasin Dam & Reservoir Long-Term Improvements A heavy storm event in 2018 caused significant damage to the auxiliary spillway, upstream trash rack and diversion, and downstream area. Subsequent engineering studies concluded that improvements are needed to increase the spillway capacity to safely pass the updated design flood without overtopping the existing embankment dam. This project is needed for dam safety. This project will construct a new concrete spillway with adequate flow capacity along the alignment of the existing auxiliary spillway and additional flood protection to the Moccasin project facilities. 10014115 Cherry Dam Spillway - Short Term Improvements
Cherry Dam Spillway is a 334 foot-wide ogee-type concrete weir that discharges into an unlined adjacent channel. The spillway capacity is designed for 52,000 cfs. A spill of 1,500 cfs in 2010 resulted in significant erosion damage to the unlined spill channel, large-scale erosion along the western segment of Cherry Dam, and flooding of Cherry Power Tunnel Adit and a campground downstream. Engineering studies showed that remedial measures and erosion protection for the spill channel are needed to ensure that spill flows from Cherry Valley Dam spillway can be contained without erosion damage to the existing embankment dam and downstream area. Studies also found that long-term improvement to the spillway is needed to increase the hydraulic capacity of the spillway to safely pass the design flood. This project is a short-term interim solution until the long-term spillway improvements are implemented. This project will reestablish containment for the breached spill channel section from the 2010 spill and install armoring to protect the upper spill channel section against erosion from spillway releases of up to 2,000 cubic feet per second.
10030759 Eleanor Dam Rehabilitation
Mitigation alternatives will include improvements to increase spill capacity to safely pass the design flood, installation of a liner on the upstream face of the dam, concrete repairs, valve replacement, and installation of concrete lining and riprap for foundation armoring, and replacement of the existing bridge. 10039119 Early Intake Dam - Long Term
Remove the existing deteriorated dam and construct a new concrete diversion structure and conveyance system within the existing Raker Act boundary to divert flows from Cherry Creek and Tuolumne River upstream of Kirkwood Powerhouse into Mountain Tunnel for SFPUC customers during emergencies.

O'Shaughnessy Dam Outlet Works Phase 2
O'Shaughnessy Dam was completed in 1923 and raised in 1938. A condition assessment of the dam outlet works revealed the need for improvements to the existing outlet works, including gates and valves (1923 construction), to ensure safe and reliable operation. Based on engineering studies and prioritization of asset condition, needs, and risks, improvements to the existing outlet works will be implemented in two A5
APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
phases. The O'Shaughnessy Dam Outlet Works Phase 1 Project is described under Project Number 10032903 and is currently in the design and construction phases. Phase 2 of the O'Shaughnessy Dam Outlet Improvement Project will begin in 2025 and will include replacement and/or refurbishment of eight discharge valves, rehabilitation of three drum gates, refurbishment of twelve slide gates, installation of a new diversion pipe isolation valve, and improvements for the diversion tunnel. The project will include:
(1) replacement of six 60-inch and one 72-inch discharge needle valves; (2) refurbishment of one 72-inch discharge butterfly valve; (3) rehabilitation of three drum gates; (4) refurbishment of twelve slide gates; (5) installation of a new diversion pipe isolation valve; and (6) improvements for the diversion tunnel.

Mountain Tunnel
10014114 Mountain Tunnel Improvement Project
Constructed between 1917 and 1925, Mountain Tunnel (MT) is a critical, nonredundant link in the Hetch Hetchy Regional Water System, conveying SFPUC water supply from Kirkwood Powerhouse to Priest Reservoir. Due to the tunnel's 90 years of operation, deferred maintenance, and construction deficiencies from the early 1900s, sections of the tunnel have deteriorated, some more extensively than others. The Mountain Tunnel Inspection and Repairs Project provided a tunnel inspection in 2017 to update the Condition Assessment conducted in 2008. Short-term repairs were also made in 2017 and 2018 to reduce the risk of failures in the concrete lining prior to implementation of the long-term project. The Mountain Tunnel Improvements (Rehabilitation)Project was selected for the design and construction of the preferred engineering alternative that will keep this vital component of the Hetch Hetchy Regional Water System in reliable service for years to come. The budget and schedule are based on the Mountain Tunnel Improvements Project construction phase, which is anticipated to take place between 2021 and 2027.

This is the water funded portion of the Mountain Tunnel projects. For the Mountain Tunnel Improvements Project, the water portion will rehabilitate the inside of the tunnel and extend the siphon at South Fork, along with related safety improvements to the roadways that access the Mountain Tunnel.

Powerhouse (Joint)
10037077 Moccasin Old Powerhouse Hazard Mitigation
Design and install mitigation measures to prevent the building from collapsing and to prevent hazardous materials (such as lead-based paint and asbestos) from contaminating Moccasin Reservoir.

Tunnels (Joint)
10014108 Canyon Tunnel - Hetchy Adit Rehab & OSH Bridge The project is to install a new reinforced concrete plug downstream of the existing plug in Hetchy Adit and rehabilitate O'Shaughnessy Adit Access Bridge including sub-structure retrofit and super structure replacement.

Utilities (Joint)
10014110 Moccasin Wastewater Treatment Plant
This project will replace the existing plant with a package two-train sequencing batch reactor (SBR) plant with grit removal and screening facilities, upgraded electrical and flow monitoring systems, flow equalization, SCADA instrumentation and automation features, and related site improvements.

Joint Infrastructure Project Development
10014116 JOINT - PROJECT DEVELOPMENT
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APPENDICES Q2-FY2024-25 (10/01/24 – 12/31/24)
The Project Development (PD) Account captures program-level expenditures. The following charges are allocated to the joint funded PD Account: 1) task orders for overall program management and project prioritization tasks, where the costs should be distributed over all CIP Projects; 2) infrastructure and HHWP staff performing program-level tasks, including capital plan development, budget management (including fund management, and cost reallocations), and unifier and quarterly report generation tasks, where the costs should be distributed over all CIP projects; 3) portal support for the existing SharePoint portal (including document management and project dashboard reporting); 4) work outreach program; and 5) City Attorney contract development charges.

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Project Name Approved Budget Start Finish
Hetchy Capital Improvement Program $2,016,814,835.02 03-Oct-11 31-Dec-41 Hetch Hetchy Water Enterpise $2,016,814,835.02 03-Oct-11 31-Dec-41 Wa ter Infrastructure $209,409,421.01 26-Mar-12 30-Jun-34 Water Conveyance (Water) $196,494,822.00 01-Jul-19 28-Feb-29 10035575 SJPL Valve and Safe Entry Improvement $157,752,191.00 01-Jul-19 28-Feb-29 10041725 SJPL Valve Remote Control and Monitoring $38,742,631.00 01-Oct-24 31-Dec-28 Water Infrastructure Proje ct Development $12,914,599.00 26-Mar-12 30-Jun-34 CUH100PD HHW- Water Project Development $12,914,599.00 26-Mar-12 30-Jun-34 Power Infrastructure $376,407,179.00 29-May-12 30-Jun-34 Dams & Reservoirs (Power) $38,798,254.00 01-Jan-25 30-Jun-31 CUH10106 Cherry-Eleanor Pumps $38,798,254.00 01-Jan-25 30-Jun-31 Powerhouse $141,611,932.99 18-Sep-20 31-Dec-28
CUH10114 Moccasin Powerhouse and GSU Rehabilitation $100,556,003.00 18-Sep-20 31-Dec-28 10036809 HHW - Moccasin Powerhouse Bypass Upgrade $41,055,930.00 18-Sep-20 01-Dec-27 Switchyard & Substations (Power) $57,115,334.99 01-Sep-15 31-Jan-30 CUH10115 Warnerville Substation Rehabilitation Project $37,407,004.00 01-Sep-15 25-Nov-26 10039568 Moccasin Switchyard Rehabilitation $19,708,331.00 01-Nov-22 31-Jan-30 Transmission Lines $121,007,957.01 01-Jul-17 30-Jun-29
10035721 Transmission Lines 7/8 Upgrades $37,327,197.00 02-Dec-19 31-Jan-25 10014089 Transmission Lines Clearance Mi tigation $83,680,760.00 01-Jul-17 30-Jun-29 Power Infrastructure Project Development $17,873,700.00 29-May-12 30-Jun-34 CUH101PD HHW- Power Project Development $17,873,700.00 29-May-12 30-Jun-34 Joint Infrastructure $1,430,998,235.01 03-Oct-11 31-Dec-41 Water Conveyance (Joint) $331,171,945.00 03-Feb-14 08-Dec-34 CUH10116 Moccasin Penstock Rehabilitation $331,171,945.00 03-Feb-14 08-Dec-34 Buildings (Join) $115,023,904.00 14-Dec-22 01-Apr-31
10039680 Moccasin Engineering and Records Building $88,733,548.00 14-Dec-22 31-May-29 10041727 Moccasin Warehouse Building $26,290,356.00 01-Jan-25 01-Apr-31 Dams & Reservoirs (Joint) $598,857,830.01 01-Feb-18 31-Dec-41 10032903 O'Shaughnessy Dam Outlet Works Phase 1 $43,731,371.01 01-Feb-18 31-Dec-25 10030759 Eleanor Dam Rehabilitation $113,873,604.00 01-Jun-20 31-Dec-38 CUH102-N03 O'Shaughnessy Dam Outlet Works Phase 2 $184,106,942.00 01-Jul-25 31-Dec-41 10037351 Moccasin Dam & Reservoir Long T erm Improve $142,187,984.00 03-May-21 31-Dec-34 10014115 Cherry Dam Spillway - Short T erm Improvemen $14,885,874.00 01-Mar-21 30-Jun-27 10039119 Early Intake Dam - Long Term $100,072,055.00 01-Jul-23 31-Dec-35 Mountain Tunnel $268,668,950.00 03-Oct-11 03-Jun-27
CUH10221 Mountain Tunnel Improvement Project $268,668,950.00 03-Oct-11 03-Jun-27 Powerhouse (Joint) $13,474,515.00 01-Jan-21 01-Jul-32
10037077 Moccasin Old Powerhouse Hazard Mitigation $13,474,515.00 01-Jan-21 01-Jul-32 Tunnels (Joint) $30,138,401.00 03-Feb-14 31-Dec-30
CUH10215 Canyon Tunnel - Hetchy Adit Rehab & OSH Br $30,138,401.00 03-Feb-14 31-Dec-30 Utilities (Joint) $15,376,737.00 03-Jan-22 20-Feb-28
10014110 Moccasin Wastewater Treatment Plant $15,376,737.00 03-Jan-22 20-Feb-28 Joint Infrastructure Project Development $58,285,953.00 25-Jun-12 30-Jun-34 CUH102-PD HHW- Joint Project Development $58,285,953.00 25-Jun-12 30-Jun-34 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FQ3 FQ4 FQ1 FQ2 FY2025 FY2026 FY 2027 FY2028 FY2029 FY2030 FY2031 FY2032 FY 2033 FY2034 FY 2035 APPENDIX B. Hetch Hetchy Capital Improvement Program Approved Project Level Budgets/Schedules Project Management
Planning
Environmental
Design
Right-of-W ay
Bid & Award
Construction Mgmt
Construction
Closeout
Program Mgmt
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APPENDICES Q2-FY2024-2025 (10/01/24 - 12/31/24)
APPENDIX C. LIST OF ACRONYMS
Cat Ex Categorical Exemption
CDFW California Department of Fish and Wildlife
CEQA California Environmental Quality Act
CER Conceptual Engineering Report
CIP Capital Improvement Program
CM/GC Construction Manager/General Contractor
CFS Cubic Feet Per Second
DB Design-Build
EIR Environmental Impact Report
FY Fiscal Year
GSU Generator Step-Up
GWH Gigawatt Hours
HCIP Hetch Hetchy Capital Improvement Program
HH Hetch Hetchy
HHWP Hetch Hetchy Water and Power
IFR Instream Flow Release
kV Kilovolts
MCC Motor Control Center
MND Mitigated Negative Declaration
MT Mountain Tunnel
NCN Non-Conformance Notice
NTP Notice to Proceed
OSH O'Shaughnessy Dam
PD Project Development
PG&E Pacific Gas and Electric
PLC Programmable Logic Controller
RFI Requests for Information
R&R Renewal and Replacement
SBR Sequence Batch Reactor
SCADA Supervisory Control and Data Acquisition
SFPUC San Francisco Public Utilities Commission
SJPL San Joaquin Pipeline
TBD To Be Determined
TSC Technical Steering Committee
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APPENDICES Q2-FY2024-2025 (10/01/24 – 12/31/24)
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